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This fix changes the battery icon slightly to match modified specs
(It is 1px shorter).
The spec also standardizes all battery icons to the same size
so the regression for tethered device battery is also fixed.

Bug: 1126674
Change-Id: Ia71972930c51c964e4110ba887f17b0eca027847
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2404417
Commit-Queue: Ahmed Mehfooz <amehfooz@chromium.org>
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#806521}